After upgrade to IM 2.4 you may not see the new color scheme in your browser.
(New is a white color scheme, old was blue.)
We have only seen this problem in chrome, and the solution was to clear the cache.
Here's how to clear your Google Chrome (most recent version) cache:
- Click on the Chrome menu on the browser toolbar.
- Select Tools.
- Select Clear browsing data.
- A dialogue window will appear, providing you with a list of checkboxes for the types of information that you wish to have removed.